Mr McCauley and his wife live in Bowral and use Picton Road regularly on trips to Wollongong.

He said the recent deaths on the road should have prompted action.

``I've been reading all the articles and timelines in the news and it makes me wonder why the RTA hasn't lowered the speed limit,'' he said. ``There's an unusual number of trucks on the road but I think speed is the main thing.

``You feel as though you're in a race the minute you get on it.''

An RTA spokesman said managing speed was a key element for safe roads.

``In response to the recent crashes on Picton Road the RTA is developing a comprehensive Picton Road Corridor Strategy to improve safety for all road-users,'' he said.

``Key elements under consideration include the extensive use of safety barriers, a review of the existing speed limit and a review of all advisory signage on Picton Road.''

Mr McCauley, a retired engineer, has been using the road for 14 years and said it wasn't safe.

``You're aware you're in a risky situation, especially when those trucks start overtaking you,'' he said. ``The speed limit needs to be slower and they need to put big signs all along the road to let people know. Someone has to take responsibility for this.''

The RTA spokesman said the NSW Government announced a $12million program of safety improvements along the 27kilometres of Picton Road from Mount Ousley Road to the Hume Highway interchange in February last year.

``It's expected this strategy will be finalised within the next three months,'' he said.